s2js is a Javascript port of the s2 spherical geometry library.
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npm install s2js
The library is available as both ESM & CJS modules:
ESM
import { s2 } from 's2js'
CJS
const { s2 } = require('s2js')
CDN
<script type="module">
import { s2 } from 'https://esm.sh/s2js'
</script>
The supplementary geojson module provides convenience functions for working with GeoJSON data in S2:
import { geojson } from 's2js'
const s2Polyline = geojson.fromGeoJSON({
type: 'LineString',
coordinates: [
[102.0, 0.0],
[103.0, 1.0],
[104.0, 0.0],
[105.0, 1.0]
]
})
The RegionCoverer supports all geometry types including multi-geometries:
const coverer = new geojson.RegionCoverer({ maxCells: 30 })
const union = coverer.covering({
type: 'Polygon',
coordinates: [
[
[100.0, 0.0],
[101.0, 0.0],
[101.0, 1.0],
[100.0, 1.0],
[100.0, 0.0]
]
]
})
If you'd like to contribute a module please open an Issue to discuss.
© 2024 Peter Johnson <github:missinglink>
This source code is published under the Apache-2.0 license.